<template>
    <div>
        <div class="top">
            <div class="top-op">
                <div class="btn">
                    <el-upload :show-file-list="false" :with-credentials="true" :multiple="true" :http-request="addFile"
                        :accept="fileAccept">
                        <el-button type="primary">
                            <span class="iconfont icon-upload"></span>
                            上传
                        </el-button>
                    </el-upload>
                </div>
                <el-button type="success" @click="newFolder">
                    <span class="iconfont icon-folder-add">
                    </span>新建文件夹
                </el-button>

                <el-button type="danger" :disabled="selectFileIdList.length == 0" @click="delFileBatch">
                    <span class="iconfont icon-del">

                    </span>批量删除
                </el-button>

                <el-button type="warning" :disabled="selectFileIdList.length == 0" @click="moveFolderBatch">
                    <span class="iconfont icon-move">

                    </span>批量移动
                </el-button>

                <div class="search-panel">
                    <!--input输入-->
                    <el-input clearable placeholder="支持模糊搜索" v-model="fileNameFuzzy" @keyup.enter="search">
                        <template #suffix>
                            <i class="iconfont icon-search" @click="search"></i>
                        </template>
                    </el-input>
                </div>
                <div class="iconfont icon-refresh" @click="loadDataList"></div>
            </div>
            <!-- 导航 -->
            <Navigation ref="navigationRef" @navChange="navChange"></Navigation>
        </div>
        <div class="file-list" v-if="tableData.list && tableData.list.length > 0">
            <Table ref="dataTabelRef" :columns="columns" :dataSource="tableData" :fetch="loadDataList" :initFetch="false"
                :options="tableOptions" @rowSelected="rowSelected">
                <template #fileName="{ index, row }">
                    <div class="file-item" @mouseenter="showOp(row)" @mouseleave="cancelShowOp(row)">
                        <template v-if="(row.fileType == 3 || row.fileType == 1) && row.status == 2">
                            <Icon :cover="row.fileCover" :width="32"></Icon>
                        </template>
                        <template v-else>
                            <Icon v-if="row.folderType == 0" :fileType="row.fileType"></Icon>
                            <Icon v-if="row.folderType == 1" :fileType="0"> </Icon>
                        </template>

                        <span class="file-name" v-if="!row.showEdit" :title="row.fileName">
                            <span @click="preview(row)">{{ row.fileName }}</span>
                            <span v-if="row.status == 0" class="transfer-status">转码中</span>
                            <span v-if="row.status == 1" class="transfer-status transfer-fail">转码失败</span>
                        </span>

                        <div class="edit-panel" v-if="row.showEdit">
                            <el-input v-model.trim="row.fileNameReal" ref="editNameRef" :maxLength="190"
                                @keyup.enter="saveNameEdit(index)">
                                <template #suffix>{{ row.fileSuffix }}</template>
                            </el-input>

                            <span :class="['iconfont icon-right1', row.fileNameReal ? '' : 'not-allow']"
                                @click="saveNameEdit(index)"></span>
                            <span class="iconfont icon-error" @click="cancelNameEdit(index)"> </span>
                        </div>
                        <span class=" op">
                            <template v-if="row.showOp && row.fileId && row.status == 2">
                                <span class="iconfont icon-share1" @click="share(row)">分享</span>
                                <span class="iconfont icon-download" v-if="row.folderType == 0"
                                    @click="download(row)">下载</span>
                                <span class="iconfont icon-del" @click="delFile(row)">删除</span>
                                <span class="iconfont icon-edit" @click="editFileName(index)">重命名</span>
                                <span class="iconfont icon-move" @click="moveFolder(row)">移动</span>
                            </template>
                        </span>
                    </div>
                </template>
                <template #fileSize="{ index, row }">
                    <span v-if="row.fileSize">
                        {{ proxy.Utils.size2Str(row.fileSize) }}
                    </span>
                </template>
            </Table>
        </div>
        <div class="no-data" v-else>
            <div class="no-date-inner">
                <Icon iconName="no_data" :width="120" fit="fill"></Icon>
                <div class="tips">当前目录为空,上传你的第一个文件吧</div>
                <div class="op-list">
                    <el-upload :show-file-list="false" :with-credentials="true" :multiple="true" :http-request="addFile"
                        :accept="fileAccept">
                        <div class="op-item">
                            <Icon iconName="file" :width="60"></Icon>
                            <div>上传文件</div>
                        </div>
                    </el-upload>
                    <div class="op-item" v-if="category == 'all'" @click="newFolder">
                        <Icon iconName="folder" :width="60"></Icon>
                        <div>新建目录</div>
                    </div>
                </div>
            </div>
        </div>
        <FolderSelect ref="folderSelectRef" @folderSelect="moveFolderDone"></FolderSelect>
    </div>
    <!-- 预览 -->
    <Preview ref="previewRef"></Preview>
    <!-- 分享 -->
    <FileShare ref="shareRef"></FileShare>
</template>

<script setup>
import FileShare from "./ShareFile.vue";
import CategoryInfo from "../../js/CategoryInfo.js"
import { ref, reactive, getCurrentInstance, nextTick, computed } from "vue"
const { proxy } = getCurrentInstance();

//子组件传输信息,"上传文件步骤"
const emit = defineEmits(["addFile"]);
const addFile = (fileData) => {
    emit("addFile", { file: fileData.file, filePid: currentFolder.value.fileId });
};

//添加文件回调
const reload = () => {
    showLoading.value = false;
    loadDataList();
};
defineExpose({
    reload,
})
//当前目录
const currentFolder = ref({ fileId: "0" });

const api = {
    loadDataList: "/file/loadDataList",
    rename: "/file/rename",
    newFolder: "/file/newFoloder",
    getFolderInfo: "/file/getFolderInfo",
    delFile: "/file/delFile",
    changeFileFolder: "/file/changeFileFolder",
    createDownloadUrl: "/file/createDownloadUrl",
    download: "/api/file/download",
};

const fileAccept = computed(() => {
    const categoryItem = CategoryInfo[category.value];
    return categoryItem ? categoryItem.accept : "*";
});

const columns = [
    {
        label: "文件名",
        prop: "fileName",
        scopedSlots: "fileName",
    },
    {
        label: "修改时间",
        prop: "lastUpdateTime",
        width: 200,
    },
    {
        label: "大小",
        prop: "fileSize",
        scopedSlots: "fileSize",
        width: 200,
    }
];

const search = () => {
    showLoading.value = true;
    loadDataList();
}
const tableData = ref({});
const tableOptions = ref({
    extHeight: 50,
    selectType: "checkbox",
});

const fileNameFuzzy = ref();
const showLoading = ref(true);
const category = ref();

const loadDataList = async () => {
    let params = {
        pageNo: tableData.value.pageNo,
        pageSize: tableData.value.pageSize,
        fileNameFuzzy: fileNameFuzzy.value,
        filePid: currentFolder.value.fileId,
        category: category.value,
    };
    if (params.category !== "all") {
        delete params.filePid;
    }

    let result = await proxy.Request({
        url: api.loadDataList,
        showLoading: showLoading.value,
        params: params,
    })
    if (!result) {
        return;
    }
    tableData.value = result.data;
};



//展示操作按钮
const showOp = (row) => {
    tableData.value.list.forEach((element) => {
        element.showOp = false;
    });
    row.showOp = true;
};

const cancelShowOp = (row) => {
    row.showOp = false;
};

//编辑行
const editing = ref(false);
const editNameRef = ref();
//新建文件夹
const newFolder = () => {
    if (editing.value) {
        return;
    }
    tableData.value.list.forEach((element) => {
        element.showEdit = false;
    });
    editing.value = true;
    tableData.value.list.unshift({
        showEdit: true,
        fileType: 0,
        fileId: "",
        filePid: 0,
    });
    nextTick(() => {
        editNameRef.value.focus();
    });
};

const cancelNameEdit = (index) => {
    const fileData = tableData.value.list[index];
    if (fileData.fileId) {
        fileData.showEdit = false;
    } else {
        tableData.value.list.splice(index, 1);
    }
    editing.value = false;

}

const saveNameEdit = async (index) => {
    const { fileId, filePid, fileNameReal } = tableData.value.list[index];
    if (fileNameReal == "" || fileNameReal.indexOf("/") != -1) {
        proxy.Message.warning("文件名不能为空且不能含有斜杠");
        return;
    }
    let url = api.rename;
    if (fileId == "") {
        url = api.newFolder;
    }
    let result = await proxy.Request({
        url: url,
        params: {
            fileId: fileId,
            filePid: filePid,
            fileName: fileNameReal,
        }
    })
    if (!result) {
        return;
    }
    tableData.value.list[index] = result.data;
    editing.value = false;
};

const editFileName = (index) => {
    if (tableData.value.list[0].fileId == "") {
        tableData.value.list.splice(0, 1);//当创建文件时同时给其他文件重命名,需要把创建文件编辑行删除
        index = index - 1;
    }
    tableData.value.list.forEach((element) => {
        element.showEdit = false;
    });
    let currentData = tableData.value.list[index];
    currentData.showEdit = true;
    //辆辑文件
    if (currentData.folderType == 0) {
        currentData.fileNameReal = currentData.fileName.substring(
            0,
            currentData.fileName.indexOf(".")
        );
        currentData.fileSuffix = currentData.fileName.substring(
            currentData.fileName.indexOf(".")
        );
    } else {
        currentData.fileNameReal = currentData.fileName;
        currentData.fileSuffix = "";
    }
    editing.value = true;
    nextTick(() => {
        editNameRef.value.focus();
    });
};


//多选
const selectFileIdList = ref([]);
const rowSelected = (rows) => {
    selectFileIdList.value = [];
    rows.forEach((item) => {
        selectFileIdList.value.push(item.fileId);
    });
};
//删除
const delFile = (row) => {
    proxy.Confirm(
        `你确定要删除【${row.fileName}】吗?删除的文件可在10天内通过回收站还原`,
        async () => {
            let result = await proxy.Request({
                url: api.delFile,
                params: {
                    fileIds: row.fileId,
                },
            });
            if (!result) {
                return;
            }
            loadDataList();
        }
    )
}

const delFileBatch = () => {
    if (selectFileIdList.value.length == 0) {
        return;
    }
    proxy.Confirm(
        `你确定要删除这些文件吗?删除的文件可在10天内通过回收站还原`,
        async () => {
            let result = await proxy.Request({
                url: api.delFile,
                params: {
                    fileIds: selectFileIdList.value.join(","),
                },
            });
            if (!result) {
                return;
            }
            loadDataList();
        }
    );
};
const folderSelectRef = ref();
const currentMoveFile = ref({});

const moveFolder = (data) => {
    currentMoveFile.value = data;
    folderSelectRef.value.showFolderDialog(currentFolder.value.fileId);

}
const moveFolderBatch = () => {
    currentMoveFile.value = {};
    folderSelectRef.value.showFolderDialog(currentFolder.value.fileId);

};

const moveFolderDone = async (folderId) => {
    if (currentFolder.value.fileId == folderId) {
        proxy.Message.warning("文件正在当前目录,无需移动");
        return;
    }
    let fileIdsArray = [];
    if (currentMoveFile.value.fileId) {
        fileIdsArray.push(currentMoveFile.value.fileId);
    } else {
        fileIdsArray = fileIdsArray.concat(selectFileIdList.value);
    }
    let result = await proxy.Request({
        url: api.changeFileFolder,
        params: {
            fileIds: fileIdsArray.join(","),
            filePid: folderId,
        },
    });
    if (!result) {
        return;
    }
    folderSelectRef.value.close();
    loadDataList();
};

//预览
const navigationRef = ref();
const previewRef = ref();
const preview = (data) => {
    //目录
    if (data.folderType == 1) {
        navigationRef.value.openFolder(data);
        return;
    }
    //文件
    if (data.status != 2) {
        proxy.Message.warning("文件未完成转码,无法预览");
        return;
    }
    previewRef.value.showPreview(data, 0);
};
const navChange = (data) => {
    const { categoryId, curFolder } = data;
    currentFolder.value = curFolder;
    category.value = categoryId;
    loadDataList();
}

// 下载文件
const download = async (row) => {
    let result = await proxy.Request({
        url: api.createDownloadUrl + "/" + row.fileId,
    });
    if (!result) {
        return;
    }
    window.location.href = api.download + "/" + result.data;
};

//分享
const shareRef = ref();
const share = (row) => {
    shareRef.value.show(row);
};
</script>

<style lang="scss" scoped>
@import "@/assets/file.list.scss";
</style>
